Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Analysis of Genomic Equivalence of Nuclei
Towards the ending of 19th century August Weismann had proposed that during cleavage the genetic determinants (later shown to be chromosomes) were parceled out between different blastomeres in some manner that determined the path of differentiation that a given cell might take. As per to this theory only the germ cells contained all the genetic determinants and the several somatic cell types differed in the genetic determinants that they contained. In other words, the nuclei of only the germ cells consist of all the genes and have a complete genome, whereas the nuclei of dissimilar somatic cells may contain only those genes that are needed for their specific type of differentiation.
However, on the basis of many studies it is believed that in an organism nuclei of all cells of the body consist of a complete and identical set of all the genes as that in the original nucleus of the zygote. It means that the genomes of all cells and the zygote are equal. Development involves utilization of different genes from this common genome through each cell type for its own particular type, of differentiation. This belief in genomic equivalence of nuclei of all cells is supported through a fair amount of evidence of both genetic and embryological nature. It has been found that particular number of chromosomes, on which genes are arranged, is constant throughout all the dissimilar tissues of the adult organism. The DNA, the carrier of genetic information, extracted from different somatic tissues has identical composition and properties. It has been shown that in the larvae of Chironomus and as well Drosophila the number of chromosomes and their banding pattern (pointing out the number of genes) are constant in all cells.
Ask questiRed-green color blindness is an X-linked recessive disorder. If Allison is heterozygous (a carrier), and her husband, Michael, is NOT colorblind. What is the chance that
State the concept of type locus interaction Some of the major contributions included the concept of type locus interaction, the analysis of quantitative as opposed to qualitati
How phytohormones help the development of parthenocarpic fruits? The Parthenocarpic fruits are those produced with no fecundation. Several plants naturally make parthenocarpic
1) What are some characteristics that define the lifestyle of a parasitic nematode? 2) What are beneficial nematodes? Discuss their significance
Which are the structures that are part of the nervous system? The structures that form the nervous system can be separated into the central nervous system (CNS) and the periphe
Describe the tasks of various body systems in breaking down carbohydrates into glucose to fuel the cells work
S e l e n i u m Selenium toxicity due to pollution of environment has been reported in animals. Contamination of pasture from industries emitting fly ash particularly fo
Explain what an isotope is and explain one use of isotopes.
Explain The concentration of a solution The concentration of a solution is the amount of solute dissolved in a specified amount of solvent or solution. When the concentration
What is aneuploidy? What are the conditions caused by the aneuploidies? The Aneuploidy is an abnormal number of chromosomes in the cells of an individual. The major aneuploi
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd